Unblock Instagram scroll lock

instagram-scroll-lock.js

// ==UserScript==
// @name         Unblock Instagram scroll lock
// @namespace    http://tampermonkey.net/
// @version      0.1
// @author       You
// @match        https://www.instagram.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    const targetNode = document.querySelector('body');
    const observer = new MutationObserver(() => {
        if (targetNode.hasAttribute('style')) {
            targetNode.removeAttribute('style');
        }
        observer.takeRecords();
    });
    observer.observe(targetNode, {attributes: true, childList: false, subtree: false});
})();